Continuous-wave terahertz system with a 60 dB dynamic range

I. S. Gregory, W. R. Tribe, C. Baker, B. E. Cole, M. J. Evans, L. Spencer, M. Pepper, M. Missous

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We have developed a high-performance continuous-wave terahertz imaging system based on photomixing. The emitter and detector are driven by compact, unstabilized, single-mode diode lasers. The all-optoelectronic, homodyne detection scheme yields both amplitude and phase information, and with careful optimization and matching of both emitter and receiver, a 60 dB dynamic range, at 0.53 THz, can be routinely achieved. This replicates the performance of established pulsed THz imagers at this frequency. © 2005 American Institute of Physics.
    Original languageEnglish
    Article number204104
    Pages (from-to)1-3
    Number of pages2
    JournalApplied Physics Letters
    Volume86
    Issue number20
    DOIs
    Publication statusPublished - 16 May 2005

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